题目内容

客户买入期权时()期权费,卖出期权时()期权费。

A. 收取;收取
B. 支付;收取
C. 支付;支付
D. 收取;支付

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Theexternalcircumferenceofapairofmainbearingshellsisslightly()thatoftheboreofthehousingwhichreceivesthemWhatsthemeaningof“that”inthesentenceabove?

A. lessthan
B. lighterthan
C. largerthan
D. smallerthan

气胀式救生筏充气所使用的气体应是()。

A. 有毒气体
B. 氨气
C. 二氧化碳和少部分氮气

ALLGEAR,SUCHASPILOTLADDER,ACCOMMODATIONLADDER,HOIST,ETC.,NECESSARYFORASAFETRANSFEROFTHEPILOTisknownas().

A. Riggins
B. Gears
C. Boardingarrangements
D. Fittings

TheexternalcircumferenceofapairofmainbearingshellsisslightlylargerthanthatoftheboreofthehousingwhichreceivesthemThedifferenceistermed().

A. nip
B. nap
C. gap
D. lip

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